11
Operation mode: Protective operation (see M7961)
e.g. light curtains to secure dangerous areas
Connection up to 3 light curtains
Manual or automatic start possible for each light curtain
With or without feedback input for external contactors
Possible settings:
M7942
Automatic start
On automatic start the contacts K1 and K2 are energized when the light
curtain that is set for auto start is free after interruption. It is necessary that
the other light curtains with manual start are not interruped.
Manual start
On manual start the contacts K1 and K2 are energized when the light barrier
that is set for manual start is free after interruption and the start button is
pressed.
The start button must be activated in 2 conditions:
-
After return of the supply voltage
(when minimum 1 light curtain is programmed for manual start)
-
When 1 light curtain with manual start was interrupted
Switch 10: Start mode and feedback input
0
1
2
3
4
5
6
7
8
9
without feedback
input
with feedback input
S
wit
ch 1
0 LC 1
LC 2
LC 3
Auto
Manu
Manu
Auto
Auto
Manu
Auto
Auto
Auto
not
allowed
(fault 5)
Auto
Manu
Manu
Auto
Auto
Manu
Auto
Auto
Auto
not
allowed
(fault 5)
1 LC 1
LC 2
LC 3
Manu
Manu
Manu
Manu
Auto
Manu
Manu
Auto
Auto
Manu
Manu
Manu
Manu
Auto
Manu
Manu
Auto
Auto
Function diagram
